(Portland, OR)  --  Portland Mayor Ted Wheeler is expressing concern over reports of police officers physically attacking journalists covering protests against police brutality in the city.  Wheeler took to Twitter last night, saying journalists "need to be able to cover the protests safely."  Wheeler also responded to a tweet from a journalist who says police shoved her hard and then slammed her from behind with a baton after she'd shown them her press badge.  Wheeler calls the report "extremely concerning."  At least two other journalists have reported police shoved them or hit them with batons while they were covering the protests.  Cory Elia of Village Portland and Zane Sparling of the Portland Tribune both tell KATU the officers involved told them they didn't care if they were journalists while shoving them.